it won't take one election. it's a change in institutions and when we talk about issues that will make an impact. >> i promised him a question, but we're running out of time. i don't know that we did short answers. i would like to think both mayors for being with us as well as mohammed and rachel. it has been an interesting discussion and we hope this provided insight for the audience as well. so thank you very much. [applause] >> almost 20 years ago with rock cats one of the most controversial stories in our 44 years on the air. it was called yes, but is it ours? i was accused of being a philistine, someone like in the aesthetic sensibility to appreciate the challenging nature of some contemporary art. in those 20 years, words that i questioned worth hundreds of thousands of dollars are now worth hundreds of millions. >> so what made everybody so mad 20 years ago? >> i discovered something that i could absolutely barely believe. when you question someone's taste in our, it is more personal, more probing than po